OS Command Injection Vulnerability in Zyxel GS1900 and XGS Series
CVE-2021-35031

6.8MEDIUM

Key Information:

Vendor
Zyxel
Status
Gs1900 Series Firmware
Xgs1210 Series Firmware
Xgs1250 Series Firmware
Vendor
CVE Published:
28 December 2021

Summary

A vulnerability has been identified in the TFTP client of Zyxel GS1900 series, XGS1210 series, and XGS1250 series firmware that allows an authenticated LAN user to execute arbitrary operating system commands through the device's graphical user interface. This flaw could potentially lead to unauthorized access and manipulation of system-level functions, posing significant security risks to the affected network devices.

Affected Version(s)

GS1900 series firmware 2.60

XGS1210 series firmware 1.00(ABTY.4)C0

XGS1250 series firmware 1.00(ABWE.0)C0

References

https://www.zyxel.com/support/Zyxel_security_advisory_for...
x_refsource_CONFIRM

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.